Year	% of GDP
1960	5.8928743165495066
1961	5.70267295696921
1962	5.582714214577195
1963	5.556482903348848
1964	4.948383580976393
1965	4.713768289914876
1966	5.678444798203432
1967	5.435318214840479
1968	5.368899758397913
1969	5.003098767670314
1970	5.382659938138305
1971	5.06327744819947
1972	5.129224530109913
1973	5.688782934228653
1974	6.042682553918276
1975	6.465287247060367
1976	7.655208624695249
1977	7.546077173865225
1978	7.0948582345073845
1979	7.681333447105334
1980	7.2622061978614845
1981	7.178386020274924
1982	6.8957517869880265
1983	6.945714555240438
1984	7.239407246482085
1985	6.327436991568076
1986	6.3873235491468145
1987	6.8156009891770895
1988	7.2650680875919385
1989	8.111180688565224
1990	8.258151602866429
1991	9.989743199921932
1992	10.505910021271202
1993	11.415272451225295
1994	11.363365998507884
1995	12.448891354955299
1996	11.925642471624304
1997	12.192664960514923
1998	12.566122719563163
1999	12.666970152755066
2000	13.21381762436856
2001	13.077509310222329
2002	14.253228603219013
2003	14.802057481247799
2004	16.90189199650299
2005	18.570454393648248
2006	20.021870244778462
2007	19.66685638512873
2008	22.086080484534197
2009	19.284674565307462
2010	20.97070384256565
2011	22.908289286276105
2012	22.622100630676385
2013	23.259514659602104
2014	21.21042693919825
2015	18.35919686534185
2016	17.446831495213736
2017	17.103235597533022
2018	17.970062080711564
2019	17.217306715890253
2020	16.72224006371644
2021	18.935840858904175
2022	20.750803860976628
2023	19.93613710958428